@misc{cryptoeprint:2019:1306,
    author = {Taotao li and Dequan li},
    title = {A Valid Blockchain-based Data Trading Ecosystem},
    howpublished = {Cryptology ePrint Archive, Report 2019/1306},
    year = {2019},
    url = {https://eprint.iacr.org/2019/1306},
}